Protective cover



FIG. 1 is a perspective view of the protective cover;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof, the opposite side being a mirror-image thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing of details in FIGS. 1, 3 and 4 is included for the purpose of showing environmental portions of the protective cover and forms no part of the claimed design. 

The ornamental design for a protective cover, as shown and described. 